@article{article515718ac,
title   = {Genetic parameters for productive life traits and reproductive efficiency traits at 6 years in Nellore cattle},
author = {Balieiro, Júlio Cesar de Carvalho and Eler, Joanir Pereira and Ferraz, José Bento Sterman and Mattos, E. C. and Balieiro, Cristiano de Carvalho},
year = {2008},
doi = {10.4238/vol7-4gmr547},
journal   = {Genetics and Molecular Research}
}